Hemicellulose and lignin removal to improve the enzymatic digestibility and ethanol production

2016 ◽  
Vol 94 ◽  
pp. 105-109 ◽  
Author(s):  
Qiang Yu ◽  
Xinshu Zhuang ◽  
Wen Wang ◽  
Wei Qi ◽  
Qiong Wang ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Enzymatic Digestibility ◽  
Lignin Removal

scholarly journals Lignocellulose Pretreatment Combining Continuous Alkaline Single-Screw Extrusion and Ultrasonication to Enhance Biosugar Production

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5636
Author(s):  
Jongwon Byun ◽  
Young-Lok Cha ◽  
Sung-Min Park ◽  
Kwang-Soo Kim ◽  
Ji-Eun Lee ◽  
...  
Keyword(s):  
Alkaline Pretreatment ◽  
Bioenergy Crop ◽  
Enzymatic Digestibility ◽  
Single Screw ◽  
Lignin Removal ◽  
Single Screw Extrusion ◽  
Theoretical Yield ◽  
Miscanthus Sacchariflorus ◽  
Screw Extrusion ◽  
Chemical Usage

Pretreatment to improve the enzymatic digestibility of highly crystallized lignocellulosic biomass is essential in biorefinery processes. This study investigates the combination of lignocellulose pretreatment with continuous alkaline single-screw extrusion and ultrasonication for biosugar production. Miscanthus sacchariflorus was used because it is a promising bioenergy crop. The results show that ultrasonication with continuous alkaline pretreatment increased the enzymatic digestibility of carbohydrates and reduced the use of chemicals during pretreatment. An hour of ultrasonication following 0.2 M NaOH (2.25 mol-NaOH/kg-biomass) continuous alkaline pretreatment resulted in a 6.7% increase in total biosugar production (83.1% of theoretical yield), a decrease of up to 26.1% in chemical usage, and a 17.0% increase in lignin removal compared with the case without ultrasonication. The developed method can be considered an effective and eco-friendly approach to the production of bio-based materials.

Low temperature alkali pretreatment for improving enzymatic digestibility of sweet sorghum bagasse for ethanol production

2011 ◽  
Vol 102 (7) ◽  
pp. 4793-4799 ◽  
Author(s):  
Long Wu ◽  
Mitsuhiro Arakane ◽  
Masakazu Ike ◽  
Masahisa Wada ◽  
Tomoyuki Takai ◽  
...  
Keyword(s):  
Low Temperature ◽  
Ethanol Production ◽  
Sweet Sorghum ◽  
Sweet Sorghum Bagasse ◽  
Alkali Pretreatment ◽  
Enzymatic Digestibility ◽  
Sorghum Bagasse

Wet oxidation pre-treatment of woody yard waste: parameter optimization and enzymatic digestibility for ethanol production

2004 ◽  
Vol 79 (8) ◽  
pp. 889-895 ◽  
Author(s):  
Geert Lissens ◽  
Helene Klinke ◽  
Willy Verstraete ◽  
Birgitte Ahring ◽  
Anne Belinda Thomsen
Keyword(s):  
Ethanol Production ◽  
Parameter Optimization ◽  
Wet Oxidation ◽  
Enzymatic Digestibility ◽  
Yard Waste ◽  
Pre Treatment

Utilization of lignocellulosic waste for ethanol production : Enzymatic digestibility and fermentation of pretreated shea tree sawdust

2014 ◽  
Vol 31 (7) ◽  
pp. 1180-1186 ◽  
Author(s):  
Augustine Omoniyi Ayeni ◽  
James Abiodun Omoleye ◽  
Sandeep Mudliar ◽  
Fredrick Kofi Hymore ◽  
Ram Awtar Pandey
Keyword(s):  
Ethanol Production ◽  
Lignocellulosic Waste ◽  
Enzymatic Digestibility ◽  
Shea Tree

Pseudo-Lignin Content Decreased with Hemicellulose and Lignin Removal, Improving Cellulose Accessibility, and Enzymatic Digestibility

2020 ◽  
Author(s):  
Alison Andrei Schmatz ◽  
Ana Maria Salazar-Bryam ◽  
Jonas Contiero ◽  
Celso Sant’Anna ◽  
Michel Brienzo
Keyword(s):  
Lignin Content ◽  
Enzymatic Digestibility ◽  
Lignin Removal ◽  
Cellulose Accessibility

Optimization of Sodium Carbonate Pretreatment on Enzymatic Digestibility of Bioenergy Material: Miscanthus

2014 ◽  
Vol 670-671 ◽  
pp. 240-243
Author(s):  
Ning Xu ◽  
Ben Lin Dai ◽  
Zhen Wu ◽  
Fei Hu Mu ◽  
Ji Ming Xu
Keyword(s):  
Response Surface Methodology ◽  
Reaction Time ◽  
Ethanol Production ◽  
Response Surface ◽  
Sodium Carbonate ◽  
Ammonium Carbonate ◽  
Fermentable Sugars ◽  
Enzymatic Digestibility ◽  
Plant Materials ◽  
Glucose Yield

Pretreatment is a critical step in the conversion of lignocellulose to fermentable sugars. In this work, Miscanthus straw was pretreated with ammonium carbonate (Na2CO3), which was shown by earlier works to be an effective pretreatment of grass stovers and other plant materials in the context of ethanol production. Here, we explored several key parameters including Na2CO3 concentration (2–6%), temperature (120–160°C), and reaction time (10–30 min) to evaluate their effects on enzymatic digestibility using response surface methodology. The best conditions were found to be Na2CO3 of 4.4%, temperature of 150.7°C, and reaction time of 20.0 min, under which glucose yield reached to 294.5 g/Kg biomass.

Effect of Xylan and Lignin Removal by Hydrothermal Pretreatment on Enzymatic Conversion of Sugarcane Bagasse Cellulose for Second Generation Ethanol Production

Sugar Tech ◽  
2013 ◽  
Vol 15 (4) ◽  
pp. 390-398 ◽  
Author(s):  
George J. M. Rocha ◽  
Vinícius F. N. Silva ◽  
Carlos Martín ◽  
Adilson R. Gonçalves ◽  
Viviane Marcos Nascimento ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Sugarcane Bagasse ◽  
Second Generation ◽  
Hydrothermal Pretreatment ◽  
Enzymatic Conversion ◽  
Lignin Removal ◽  
Second Generation Ethanol
Sign in / Sign up

Export Citation Format

Share Document